The climate-induced Spatio-temporal Distributions of tuna species in the tropical Atlantic Ocean

Abstract

The sustainable utilization of tuna resources faces big challenges arising from extreme climatic and oceanic events. As one of the most important regions for global ocean-atmosphere interactions, the ecological effects of changes in the ocean environment in the Atlantic are always underestimated. Meanwhile, the tropical Atlantic Ocean (TAO), as an important fishing ground for tuna, is facing significant challenges to its ecological stability due to the dual pressures of climate change and human fishing activities. This study explores the spatio-temporal correlation and periodicity between sea surface temperature (SST) and tuna resources through the response patterns of three tropical tuna species to different regional marine climate indices. Research has found that there is a clear dipole pattern in the response of tuna to SST. This study provides insights into the changes in tuna resources over multiple years.